Continuity mistake: During the beach party as Captain Willard is saying, "He was one of those guys that had that weird light around him." Note he is holding a cigarette and drinking a Schlitz, with four cans of Budweiser in front of him. In his next shot, just seconds later, there is another can of beer and the cigarette is gone despite the fact he has not moved at all. (00:32:00)????
Continuity mistake: When the Captain asks the Chief for the binoculars the boat is standing still but in the next shot as the Captain is watching Kilgore's men they're moving rapidly towards the shore. However, in the next shot, a close-up of the Captain, the ship is back in the same place and standing still. (00:24:40)????
Continuity mistake: Captain Willard is wearing green, tan and black camouflage trousers on the PBR when they spot Kilgore's air-cav unit. They immediately proceed toward shore and as he jumps off of the boat he's wearing different camouflage trousers, which are brown and green. (00:24:15 - 00:25:15)????
Continuity mistake: There's no indication that Captain Willard didn't leave for his mission immediately after having dinner with the General, being that his R&R was over. That nasty cut on his thumb is all healed without any band-aid on it by the time we see him in the next scene on the PBR. There was also a dark scab on his middle finger that was there as he smoked a cigarette in the end of the scene with the general that has also disappeared. (00:20:30)????
Continuity mistake: Clean's dog tag and cross change between scenes. When he first hears the "Arc light" B-52 strike we see the cross hanging at the same level as the dog tag then when he meets Colonel Kilgore the chains have been rearranged so that the dog tag is two inches lower than the top of the cross. (00:24:10 - 00:30:05)????